Locomotive spark and cinder arrester.



A. L. JOHNSON.

LOGOMOTIVE SPARK AND GINDEB. ARRESTER.

APPLICATION FILED NOV. 25, 1913.

N 1 09 035. Patented May '12, 1914.

5- E IE- 1.5: a EIGzE- abhor/nus UNITED STATES PATENT OFFICE.

ALFRED L. JOHNSON,

OF'ASHTABULA, OHIO.

LOCOMOTIVE SPARK AND CINDEB- ARRESTER.

To all whom it may concern Be it known that I, ALFRED L. JOHNSON, citizen of the United States, residing at Ashtabula, in the county of Ashtabula and State of Ohio, have invented certain new and useful Improvements in Locomotive Spark and Cinder Arresters, of which the following is a specification.

The present invention relates to a spark and cinder arrester for locomotives and engines, the object of the invention being to provide a device of this character which embodies novel features of construction whereby live sparks and cinders are pre vented from escaping from the smoke stack, thereby eliminating the danger of fires being started by flying sparks in fields or woody districts through which the locomotive passes.

A further objectof the invention is to provide a spark and cinder arrester of this character which is comparatively simple and inexpensive inits construction, which can be readily applied to the conventional locomotive, which will not interfere in any manner with the draft of the engine, and which will operate in an effective manner to prevent the escape of live sparks and cinders.

With these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 isa front elevation of a spark and cinder arrester constructed in accordance with the invention, showing the same as applied to the body of a locomotive. Fig. 2 is a transverse sectional View through the same. Fig. 8 is a side elevation of the forward end of a locomotive provided with one of the spark and cinder arresters, and Fig. 4 is a top plan view of the same.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

Referring to the drawings, the numeral 1 designates in a diagrammatic manner the forward end of the body portion of a loco- Specification of Letters Patent.

Application filed November 25, 1913.

Patented May 12, 1914.

Serial No. 802,942.

motive, and 2 the usual smoke stack. An lnverted conical deflector 3 is arranged within the mouth of the smoke stack 2 so as to deflect the products of combustion and smoke laterally in all directions. The diameter of the conical deflector 3 is substantially the same as the internal diameter of the smoke stack 2, and a suflicient space is provided between the smoke stack and the deflector so that the deflector will not interfere in any manner with the draft of the engine.

The inverted conical deflector 3 is supported by a series of brackets 4 which are substantially U shaped and project radially from the exterior of the smoke stack 2. These brackets 4 are vertically disposed, the two arms thereof being substantially hori- Zontal, and the lower arm of each bracket having the extremity thereof bent downwardly at 4" and secured to the exterior of the smoke stack 2, while the extremity of the upper arm is inclined downwardly and inwardly'at 4: and riveted or otherwise rigidly connected to the inverted conical deflector 3.

A substantially cylindrical perforate shell 5 of woven wire fabric or the like surrounds the upper portion of the smoke stack 2, being permanently riveted or otherwise connected to the outer ends of the U shaped brackets 4. The upper end of the perforate shell 5 is bent inwardly to provide a flange portion 5, the edge of the said flange being deflected downwardly at 5 and being disposed over the periphery of the conical deflector 3. A substantially cylindrical sec tional jacket 6 surrounds the lower portion of the smoke stack 2, the said jacket having the same diameter as the perforate shell 5 and forming a continuation thereof. The upper edge of the jacket may be secured to the lower end of the perforate shell in any suitable manner, as by means of the rivets 7. The two complemental semi-cylindrical sections of which the casing 6 is built up are formed with abutting flanged edges 6 which are suitably connected by fastening members 8. The lower end of each of these complemental semi-cylindrical sections communicates with a downwardly extending tubular guide 9 which is fitted against the exterior of the locomotive and is shaped to conform to the curvature thereof.

At the bottom of the locomotive the tubular arms or passages 9 come into contact with each other to provide a common discharge spout 10. In forming the discharge spout 10, it will be observed that the ends of the tubular arms 9 are flanged at 11 in a manner corresponding to the flanges 6 of the casing 6, the said flanges 11 being connected by suitable fastening members 12. It will thus be observed that the cylindrical casing 6 and common discharge spout 10 are formed in complemental sections adapted to be fitted to the locomotive from opposite sides thereof, each of the sections including a curved conduit or channel 9 adapted to fit against the side of the locomotive. This manner of constructing the device admits of the parts being readily assembled or taken apart, as may be found necessary. A discharge pipe 13 is shown as leading from the spout 10, although this may be omitted if found desirable. since the cinders will have lost their incandescence and be in a harmless state ready to be dropped upon the road bed after they have passed through the spark arrester and reached the discharge spout 10 at the bottom of the locomotive.

In the operation of the device, the smoke and products of combustion issuing from the smoke stack 2 will first strike against the conical deflector 5" so as to be thrown laterally and upwardly against the perforate shell 5. Any cinders and incandescent particles of solid matter will be caught by the perforate shell 3, although the gaseous prodnets of combustion and very fine particles such as are harmless will pass freely through the screen. The solid particles will lose their incandescence and injurious properties by contact with the perforate shell or screen t and also by contact with the metallic shell of the casing 6 and conduits 9. The cinders will thus be cooled and in a harmless state when they emerge from the discharge spout 10 at the bottom of the locomotive. The escape of live sparks and cinder-s is thus prevented, and all danger of fires being started thereby eliminated.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. A. spark and cinder arrester for locomotives including an inverted conical defiector, means for mounting the said inverted conical deflector over the discharge end of the smoke stack, a perforate shell surrounding the upper portion of the smoke stack and having the upper end thereof bent inwardly over the periphery of the conical deflector, a substantially cylindrical casing surrounding the lower portion of the smoke stack and forming a continuation of the perfor-ate shell, said casing being formed in complemental sections adapted to be applied to the smoke stack from opposite sides thereof, a downwardly extending conduit formed in connection with each of the said complemental sections, said conduits being curved to conform to the curvature of the locomotive, and discharge spout sections at the lower ends of the curved conduits, said discharge'spout sections fitting together and cooperating with each other to provide a common discharge spout.

2. A spark and cinder arrester for locomotives, including an inverted conical deflector, a series of vertically disposed U shaped brackets having the arms thereof horizontally disposed, said brackets being adapted to radiate from the upper end of the smoke stack and the extremities of the lower arms being extended downwardly for attachment to the smoke stack, while the extremities of the upper arms are inclined downwardly for attachment to the conical deflector to support the same overthe mouth of the smoke stack, a perforate shell surrounding the upper portion of the smoke stack and secured to the said U shaped brackets, the upper edge of the perforate shell being extended inwardly so as to project over the periphery of the conical deflector, an imperforate casing surrounding the lower portion of the smoke stack and forming a continuation of the perforate shell,

said imperfo ate casing being formed in complemental sections adapted to be applied to the smoke stack from opposite sides thereof, a downwardly extending conduit carried by each of the said complemental sections and curved to conform to the curvature of,

the locomotive so as to fit against the side thereof, and discharge spout sections at the lower ends of the said conduits, the said discharge spout sections fitting together and cooperating with each other to provide a common discharge spout. Y

In testimony whereof I affix my signature in presence of two witnesses. I

ALFRED L. JOHNSON. lVitnesses E. V. Harmon, C. L. brIAYLon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

